Credit Card Jet-Ski Key

thingiverse

This is a compact safety key for your jet-ski that easily fits in your wallet. Made from 1.5mm thick material, it may add some bulk but will still fit with ease. When you're done printing, simply stash it away in your wallet and save yourself the hassle of waiting 20 minutes to print out or buy a replacement if it gets lost on a rainy day. For optimal use, I recommend attaching a string to the key's hole and tying a slip knot at the other end so you can wear it on your arm while operating your jet-ski, ensuring the safety key remains functional as intended.